People · Poland
Jacek Szerzyna
Clock · top 57.0% of 32,048 all-time · competing since December 2025 · 2025SZER02
Jacek Szerzyna has been competing for 9 months. His best event is the Clock: a personal-best single of 17.48, set at Gorzów Cubing Days 2026, puts him in the top 57.0% of the 32,048 people who have ever been ranked in the event, and 904th in Poland. Across 7 competitions since December 2025, he has put 12 official solves on the record across one event. His Clock best has come down from 40.04 in December 2025 to 17.48, a 56% improvement. Jacek has entered seven competitions, more competitions than 88% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Poland | |
|---|---|---|---|---|---|
| Clock | 17.48 | — | top 57.0% | 904 / 1,549 |
Percentile against all competitors ever ranked in each event, a fairer measure than raw rank, because the pools differ by a factor of ten.
The line so far
Best single per competition, Clock. Faster is higher — the axis is the right way up.
The story so far
- 13 Dec 2025First competition: Cube4fun Cubers Eve Żyrardów 2025.
Competitions
- Gniezno Open 2026 · 4 Jul 2026
- Żmigród Open 2026 · 20 Jun 2026
- Cube4fun in Bełchatów 2026 · 30 May 2026
- Gorzów Cubing Days 2026 · 28 Mar 2026 — 1 personal best set
- Głuszyca Open 2026 · 7 Mar 2026 — 1 personal best set
- Żory Open 2026 · 31 Jan 2026 — 1 personal best set
- Cube4fun Cubers Eve Żyrardów 2025 · 13 Dec 2025
Reading this page: a single is one solve's time · an average is the middle three of five solves, best and worst discarded · a PB is a personal best · a DNF (did not finish) is an attempt with no valid result: a popped piece, an unsolved face, an over-limit memorisation · top X% compares against everyone ever ranked in that event, which is fairer than raw rank because event pools differ tenfold.
The circuit
The people whose scorecards keep turning up next to his.
- Sławomir Szerzyna — met in 7 rounds, finished ahead once
- Jan Szerzyna — met in 6 rounds, never finished ahead
- Wiktor Szerzyna — met in 6 rounds, never finished ahead
Next targets
- A sub-15 Clock single — 15,373 people have one; it is 2.48 away.
Targets move as he improves.